CY28442
Byte 8: Control Register 8 (continued)
Bit
@Pup
Name
RESERVED
Description
3
2
0
1
RESERVED
CLKREQ#A
CLKREQ#A
RESERVED
SRC[T/C]4 CLKREQ#A control
1 = SRC[T/C]4 stoppable by CLKREQ#A pin
0 = SRC[T/C]4 not controlled by CLKREQ#A pin
1
0
SRC[T/C]2 CLKREQ#A control
1 = SRC[T/C]2 stoppable by CLKREQ#A pin
0 = SRC[T/C]2 not controlled by CLKREQ#A pin
0
0
RESERVED
Byte 9: Control Register 9
Bit
@Pup
Name
Description
7
6
5
4
0
0
0
0
S3
S2
S1
S0
96_100_SSC Spread Spectrum Selection table:
S[3:0] SS%
‘0000’ = -0.8%(Default value)
‘0001’ = -1.0%
‘0010‘ = -1.25%
‘0011‘ = -1.5%
‘0100‘ = -1.75%
‘0101‘ = -2.0%
‘0110‘ = -2.5%
‘0111‘ = -0.5%
‘1000‘ = 0.25%
‘1001‘ = 0.4%
‘1010‘ = 0.5%
‘1011‘ = 0.6%
‘1100‘ = 0.8%
‘1101‘ = 1.0%
‘1110‘ = 1.25%
‘1111‘ = 1.5%
3
2
1
0
1
1
1
0
96_100 SEL
Software select 96_100_SSC output frequency , 0 = 96MHz , 1 = 100MHz.
96_100_SSC Enable , 0 = Disable , 1 = Enable.
96_100 Enable
96_100 SS Enable
96_100 SW HW
96_100_SSC Spread spectrum enable. 0 = Disable , 1 = Enable.
Select output frequency of 96_100_SSC via software or hardware
0 = Hardware, 1 = Software.
Byte 10: Control Register 10
Bit
@Pup
Name
RESERVED
Description
7
6
0
0
RESERVED
CLKREQ#B
SRC[T/C]4 CLKREQ#B control
1 = SRC[T/C]4 stoppable by CLKREQ#B pin
0 = SRC[T/C]4not controlled by CLKREQ#B pin
5
0
CLKREQ#B
SRC[T/C]2 CLKREQ#B control
1 = SRC[T/C]2 stoppable by CLKREQ#B pin
0 = SRC[T/C]2 not controlled by CLKREQ#B pin
4
3
0
0
RESERVED
CLKREQ#A
RESERVED
SRC[T/C]7CLKREQ#A control
1 = SRC[T/C]7 stoppable by CLKREQ#A pin
0 = SRC[T/C]7 not controlled by CLKREQ#A pin
Rev 1.0,November 21, 2006
Page 8 of 21
SPECTRALINEAR [ SPECTRALINEAR INC ]
